EV Web API

Observation

Description: Observation includes vital signs, lab results, and smoking status.

Reference: Observation in FHIR specification.

Search

Search Parameters:

Name	Type	Required	Description
category	string	False	A code that classifies the general type of Observation.
code	number	False	SNOMED/LOINC code for the Observation.
date	date	False	Date/time of the Observation.
encounter	reference	True	Which ED visit the Observation is for.
patient	reference	True	Who the Observation is for.
subject	reference	True	Who the Observation is for.

DateIncluded= True

* See Date Search for more information on searching by date.

Sample Request:

GET https://greathospital.com:8100/r4/sites/123/Observation?patient=1&category=laboratory

Read

Sample Request:

GET https://greathospital.com:8100/r4/sites/123/Observation/laboratory-lab_result-1

Add

Sample Request:

POST https://greathospital.com:8100/r4/sites/123/Observation

Body:

{
		"resourceType" : "Observation",
		"language" : "en",
		"text" : {
			"status" : "generated",
			"div": "<p><b>Observation</b>: Vital Signs</p><p><b>Observation Type</b>: Blood pressure systolic and diastolic</p><p><b>Issued</b>: 5/2/2016 9:24:59 PM -05:00</p><p><b>Component</b>: Systolic blood pressure</p><p><b>Quantity</b>: <p><b>Value</b>: 90</p><p><b>Unit</b>: millimeter Mercury column</p><p><b>Code</b>: mm[Hg]</p><p><b>System</b>: http://unitsofmeasure.org</p></p><p><b>Component</b>: Diastolic blood pressure</p><p><b>Quantity</b>: <p><b>Value</b>: 60</p><p><b>Unit</b>: millimeter Mercury column</p><p><b>Code</b>: mm[Hg]</p><p><b>System</b>: http://unitsofmeasure.org</p></p>"
		},
		"status" : "final",
		"category" : {
			"coding" : [{
					"system" : "http://hl7.org/fhir/observation-category",
					"code" : "vital-signs",
					"display" : "Vital Signs"
				}
			],
			"text" : "Vital Signs"
		},
    	"code": {
          "coding": [
            {
              "system": "http://loinc.org",
              "code": "55284-4",
              "display": "Blood pressure systolic and diastolic"
            }
          ],
          "text": "Blood pressure systolic and diastolic"
        },
		"subject" : {
			"reference" : "https://greathospital.com:8100/r4/sites/123/Patient/",
			"display" : "KELLEY, Lee"
		},
		"encounter" : {
			"reference" : "https://greathospital.com:8100/r4/sites/123/Encounter/",
			"display" : "Id:9b3746b3-531a-4d7b-abe6-7a7124b9c8ff (KELLEY, Lee)"
		},
		"effectiveDateTime" : "2016-05-02T02:26:16-05:00",
		"performer" : [{
				"reference" : "https://greathospital.com:8100/r4/sites/123/Practitioner/79e7d748-19f2-4872-8ddc-47c8b3ffca10",
				"display" : "Tran, Martin"
			}
		],
		"component": [
          {
            "code": {
              "coding": [
                {
                  "system": "http://loinc.org",
                  "code": "8480-6",
                  "display": "Systolic blood pressure"
                }
              ],
              "text": "Systolic blood pressure"
            },
            "valueQuantity": {
              "value": 90,
              "unit": "millimeter Mercury column",
              "system": "http://unitsofmeasure.org",
              "code": "mm[Hg]"
            }
          },
          {
            "code": {
              "coding": [
                {
                  "system": "http://loinc.org",
                  "code": "8462-4",
                  "display": "Diastolic blood pressure"
                }
              ],
              "text": "Diastolic blood pressure"
            },
            "valueQuantity": {
              "value": 60,
              "unit": "millimeter Mercury column",
              "system": "http://unitsofmeasure.org",
              "code": "mm[Hg]"
            }
          }
        ]
	}